In a large bowl, whisk together the dry ingredients (flour, sugar, baking powder, salt, and cinnamon). In a small bowl, whisk together the wet ingredients (milk, eggs, canola oil, and water). Add the wet ingredients into the dry ingredients and stir just until combined. Gently fold in the blueberries.

Pour batter into the donut pan 2/3 of the way full. Bake for 16-18 minutes, or until puffed up and springs back to the touch.